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Home  >  Pumps > Positive Displacement Pumps

Positive Displacement Pumps

Positive Displacement Pumps

We offer the widest selection of pumps and fluid handling instruments in the industry. Plus we can special order virtually any pump your application may require!

Air-Powered Pumps contain no heat-generating electrical components, allowing safe, explosion-proof operation in hazardous areas. Pumps require input from a compressed-air source; available in bellows and diaphragm models.

Bellows Pumps move fluid or gases through the cavity created by reciprocating bellows coupled to a driving rod.

Diaphragm Pumps pulse one or two flexible diaphragms to gently displace liquid; check valves control direction of fluid flow.

Flexible Impeller Pumps contain an elastomeric impeller that traps fluid between blades and sweeps it through the pump housing. These low-cost utility pumps are ideal for general transfer.

Flexible Liner Pumps gently push fluid between the outer surface of a flexible liner and the inner surface of a rotating body block; can pump 20% soft solids.

Hose Pumps offer a high-capacity, high-pressure option that operate on the peristaltic hose pump technology. Product is available in both dry-running and lubricated designs.

Pressure Washers/Plunger Pumps combine a high-pressure pump with spray accessories to provide a self-contained high-pressure washing system.

Progressing Cavity Pumps (rotary screw pumps) force high-viscosity (up to 20,000 cp) and particulate-laden fluids through the cavity between the screw-style rotor and stator.

Roller Pumps have spinning rollers that create a vacuum to draw in liquid to carry to the outlet port. They provide no metal to metal contact; fluid contacts only the rollers or pump housing.

Rotary Lobe Pumps are excellent for CIP/SIP applications where cleanability of the machine needs to be maintained. They also are ideal for flows at higher pressures.

Rotary Vane Pumps are similar to flexible impeller pumps, except that they have a rigid impeller made of carbon/graphite. Pumps provide high-pressure, low-shear pumping.
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Representative photo only Explosion proof Single phase NEMA Type C face Motor 1 Hp 1800 RPM 115 208 230 VAC

Explosion-proof Single-phase NEMA Type C-face Motor, 1 Hp, 1800 RPM, 115/208-230 VAC

Product Type Single-phase explosion-proof motors,hp 1,Model G870
EW-71006-45
Usually ships in 15 days.
$704.00 USD/EACH

Qty:
Representative photo only High purity air operated double diaphragm pump 3 25 GPM 1 4 NPT

High-purity air-operated double-diaphragm pump, 3.25 GPM, 1/4" NPT

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 12.3,Max temperature º C 80
EW-74020-00
Usually ships in 9 days.
$1,938.00 USD/EACH

Qty:
Representative photo only Sanitary Wash Down Rotary Lobe Pump 13 GPM 230 VAC Single phase

Sanitary Wash-Down Rotary Lobe Pump, 13 GPM, 230 VAC, Single-phase

Product Type Rotary Lobe Pumps,Max flow rate LPM 49.2,Max pressure 220 psi
EW-75201-02
Call 1-888-358-4705 for availability.
$8,030.00 USD/EACH

Qty:
EW-75102-00 All-plastic, continous-duty double-diaphragm pump, polypropylene body/Santoprene<small><sup>&reg;</sup></small> diaphragm, 3.5 GPM, 115 VAC

All-plastic, continous-duty double-diaphragm pump, polypropylene body/Santoprene diaphragm, 3.5 GPM, 115 VAC

Product Type Diaphragm Pumps,Max flow rate LPM 13.2,Max pressure 40 psi
EW-75102-00
Call 1-888-358-4705 for availability.
$530.00 USD/EACH

Qty:
EW-75420-00 Moderate Flow Positive Displacement Bypass Diaphragm Pump, 1.4 GPM, 115 VAC

Moderate Flow Positive Displacement Bypass Diaphragm Pump, 1.4 GPM, 115 VAC

Product Type Diaphragm Pumps,Max flow rate LPM 5.3,Max pressure 45 psi
EW-75420-00
In stock.
$138.00 USD/EACH

Qty:
EW-75000-00 All-plastic, multi-position double-diaphragm pump, polypropylene body/Santoprene<small><sup>&reg;</sup></small> diaphragm, 1.85 GPM, 115 VAC

All-plastic, multi-position double-diaphragm pump, polypropylene body/Santoprene diaphragm, 1.85 GPM, 115 VAC

Product Type Diaphragm Pumps,Max flow rate LPM 7,Max pressure 60 psi
EW-75000-00
In stock.
$174.00 USD/EACH

Qty:
Representative photo only Air operated double diaphragm drum pump polypropylene with PTFE diaphragm 12 GPM

Air-operated double-diaphragm drum pump; polypropylene with PTFE diaphragm, 12 GPM

Product Type Air-Operated Drum Pumps,Max temperature º C 180,Brand Kynar
EW-74024-00
Usually ships in 9 days.
$615.00 USD/EACH

Qty:
EW-76804-40 Industrial progressing cavity pump with an AC VFD drive, 0.05 - 3.4 GPH

Industrial progressing cavity pump with an AC VFD drive, 0.05 - 3.4 GPH

Product Type Progressing Cavity Pumps,Min flow rate mL/min 3.3,Max temperature º C 93
EW-76804-40
Usually ships in 10 days.
$2,504.00 USD/EACH

Qty:
Representative photo only Dispensing Gun PTFE 1 2 npt

Dispensing Gun PTFE 1/2"npt

Product Type Spray Gun Valves (actuated),Material PTFE,Model THG-LD8P-TFEV
EW-98515-07
In stock.
$159.00 USD/EACH

Qty:
See all Tank Spray Guns
EW-76803-38 Image is for illustrative purposes only. Please refer to product description

Progressing cavity pump, Stainless steel body and Viton stator construction, 3 HP AC motor, 45 PSI max pressure, 46 GPM max flow

Product Type Progressing Cavity Pumps,CE Compliance Yes,Brand Seepex
EW-76803-38
Usually ships in 10 days.
$3,432.00 USD/EACH

Qty:
EW-74440-60 Representative Image. Check individual details.

Air-operated Diaphragm Pump, FDA-Compliant, 1-1/2" Triclamp, 106gpm

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 401.3,Max pressure 100 psi
EW-74440-60
Call 1-888-358-4705 for availability.
$3,121.00 USD/EACH

Qty:
EW-75300-00 High-Flow Double-Diaphragm Pump, polypropylene/neoprene, 13 GPM

High-Flow Double-Diaphragm Pump, polypropylene/neoprene, 13 GPM

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 49.2,Max flow rate GPM 13
EW-75300-00
Usually ships in 14 days.
$544.00 USD/EACH

Qty:
EW-75300-14 Representative Photo Only. High-Flow Double-Diaphragm Pump, PTFE/neoprene, 150 GPM

High-Flow Double-Diaphragm Pump, PTFE/neoprene, 150 GPM

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 567.8,Max flow rate GPM 150
EW-75300-14
Usually ships in 8 days.
$3,143.00 USD/EACH

Qty:
EW-75150-00 Image shows 75150-00 model

Flexible impeller pump, bronze/nitrile, 6.7 GPM, 18 psi, 115 VAC

Product Type Flexible Impeller Pumps,Max flow rate LPM 25.4,Max pressure 18 psi
EW-75150-00
Usually ships in 4 days.
$102.00 USD/EACH

Qty:
EW-74000-80 Representative Photo Only. Sandpiper® Air-Powered Double-Diaphragm PVDF Pump, PVDF, 4 GPM, Santoprene<small><sup>&reg;</sup></small> Diaphragm

Sandpiper Air-Powered Double-Diaphragm PVDF Pump, PVDF, 4 GPM, Santoprene Diaphragm

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 15.1,Max flow rate GPM 4
EW-74000-80
Usually ships in 12 days.
$381.00 USD/EACH

Qty:
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